<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>24级软件1班最棒！</title>
    <style>
        body {
            margin: 0;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
            overflow: hidden;
        }

        .container {
            text-align: center;
        }

        .jumping-text {
            font-family: 'Arial Black', sans-serif;
            font-size: 4vw;
            color: #fff;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            display: inline-block;
            animation: jump 1s ease infinite;
        }

        .jumping-text span {
            display: inline-block;
            animation: colorChange 2s linear infinite;
        }

        @keyframes jump {
            0%, 100% {
                transform: translateY(0) scale(1);
            }
            50% {
                transform: translateY(-30px) scale(1.2);
            }
        }

        @keyframes colorChange {
            0% {
                filter: hue-rotate(0deg);
            }
            100% {
                filter: hue-rotate(360deg);
            }
        }

        .sparkles {
            position: absolute;
            width: 100%;
            height: 100%;
            pointer-events: none;
        }

        .sparkle {
            position: absolute;
            background: rgba(255,255,255,0.8);
            border-radius: 50%;
            animation: sparkle 1s linear infinite;
        }

        @keyframes sparkle {
            0% {
                transform: scale(0);
                opacity: 1;
            }
            100% {
                transform: scale(2);
                opacity: 0;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="jumping-text">
            <span>2</span>
            <span>4</span>
            <span>级</span>
            <span>软</span>
            <span>件</span>
            <span>1</span>
            <span>班</span>
            <span>是</span>
            <span>最</span>
            <span>棒</span>
            <span>的</span>
            <span>！</span>
        </div>
    </div>

    <script>
        function createSparkle() {
            const sparkle = document.createElement('div');
            sparkle.className = 'sparkle';
            sparkle.style.left = Math.random() * 100 + '%';
            sparkle.style.top = Math.random() * 100 + '%';
            sparkle.style.width = sparkle.style.height = Math.random() * 10 + 5 + 'px';
            document.querySelector('.sparkles').appendChild(sparkle);
            
            setTimeout(() => sparkle.remove(), 1000);
        }

        document.addEventListener('DOMContentLoaded', () => {
            const sparklesContainer = document.createElement('div');
            sparklesContainer.className = 'sparkles';
            document.body.appendChild(sparklesContainer);
            
            setInterval(createSparkle, 50);
        });
    </script>
</body>
</html>